Back to Questions
THE BOILERS AND PRESSURE VESSELS ORDINANCE, 2002 QUESTION #4025
Question 1
'Differential Pressure' across an air filter indicates:
  • The speed of the boiler
  • How clogged or dirty the filter is✔️
  • The temperature of the room
  • The price of the air
Correct Answer Explanation
High 'DP' means the filter needs cleaning or replacement.